Pile raising structure



Aug. 31, 1943. 1.. w. ATWATER PILE RAISING STRUCTURE Filed Feb. 17, 1940 4 Sheets-Sheet 1 m M a a, 1 M m WV T m Rmm W W Mm a wmw a Aug. 31, 1943.

Au'g- 1943' L. w. ATWATER 2,328,120

PILE RAISING STRUCTURE Filed Feb. 17, 1940 4 Sheets-Sheet 5 LECTN WA 7" WA TEJ-w' Gummy Aug. 31, 1943. w. ATWATER PILE RAISING STRUCTURE Filed Feb. 17. 1940 4 Sheets-Sheet 4 .structureincluded in the form Patented Aug. 31, 1943 UNITED f STATES PATE NT OFFICE PILERAI'SIN'G STRUCTURE Leon w. Atwater, Williamston, Mien. Application February 17, 1940; SerialJNo. 319,40 0, 30.Cl airns. (01. 61-73) The present invention relates to a device for raising piles which have been embedded in the ground and more particularly to a devicewherein the raising is assisted by a series of sharp, in-

termittent blows.

Frequently, it is desirable to raise piles which Fig. 4 is a section on the line IV-IV of Fig. 1, Fig. 5 is a section on the line VVof Fig. .1,

Fig. 6 is a section on the line VI-VI of Fig. 1, Fig. 'lisa perspective view of the finger and its tail piece for cocking and tripping the hammer,

have been driven intotheground, either for me purpose of salvaging or for removing them because their presence is undesirable. This problem, arises frequently with respect to interlocking sheet piling. Heretofore, so far as is known, such piling hasbeen withdrawn by means of a steady pull. Thejpresent invention contemplates the provision of apparatus which is connected to piling and subjected to a steady pull and at the same time is subjected to aseries of blows by an internally disposed hammer. The hammer is i form of the invention,

actuated to give a series of blows by a stepped or equivalent, cocking and tripping structure. which is moved through a single cycle to impart a plurality of strokes to the hammer.

An object of the present invention is topro vide a pile raising structurearranged for connection to a pile or the like to be raised and for imparting, by hammering, a plurality of sharp pulling'impulses in rapid succession.

"Another object of the invention is to provide a pile raising structure having a cocking and trippingmechanism which by moving through'a" single stroke imparts a hammer.

A further object of the invention is to provide a hammering structure havinga hammer, a cocking and tripping finger and astep'ped member for successively actuating 'the cooking and tripping a plurality of strokesto member a plurality of times in rapid succession;

A still further object of the inventionfis to provide a hammeringstructure having means for readily pre-loading a hammer actuating spring in combination with means for moving the ham mer to impart cession. l A still further object of the invention is to a pluralityfof blows in rapidsuc the stepped member Fig. 8is aperspectiveview of the portion of the ladder member and its guide shown separated from the hammer to which it iswelded, i

Fig. 9 is a partial 'vertical section of another Fig. 10 is a section on the line xx of'Fig.9,

Fig. 11 Ba view taken from the lineXI-XIof i Fig. 12 is aperspective, disclosing a detail of employed in the construction'ofFi'g. 9, w i w Fig. 13 is a partial verticalsection of another formof the invention,

Fig. 14 is a section taken onthe'iline XIV-XIV ofFig. 13, g

Fig. '15 isa side elevation disclosing the construction according to the present invention adapted to driving piles; i

Fig. 16 is a front elevation disclosed in Fig. 155cm, l w Fig. 17 is a section on the line XVII-XVII of of the construction Referring to the drawings, the reference charably disposed a tubular hammer 2. Adjacent one end of thebody 2 is an anvil 3 preferably fabricated separately asshown inFig. 3, and welded in its position shown in Figs. 1. and 2. Thenormalposition of the hammer 2 is against the anvil 3, it being heldthere by a spring 4. The lower endof the spring 4 bears against a shoulder 5 i at the inner end of atubular 'sleevefi having flanges! in alignment'with flanges 8 on the lower end of the body I. The flanges and 8 are clamped together by bolts 9 and nuts I0. p

As'will be observed from Fig. 1, the bolts 9 are particularly long. The reason forthelength is provide a hammering device of the character described adaptable to pile driving as wellas pile raising.

These and other objects relating to the constructiongoperation and combination of the parts 'will be apparentiromthe following speci flcation when taken with the accompanying drawings in which:

Fig. 1 is a-vertical section offthe invention showing one form thereof with the hammer.

against the anvil, I

Fig. 2 i a partial verticalsection of the form of the invention as shown in Fig. 1

but in a difterent position, i Fig. 3 is a perspective view of a portion of the of the invention disclosedinFigs.1and2, I

topermit the positioning of the sleeves 6, as shown in dotted outline, and at the same time, permit the bolts 9to extend through the flanges l and 8 so that by takingup on the nuts ID, the sleeves 6 maybe moved inwardly withrespect to the body I to load the s pring 4. The spring 4 should b substantiallyloaded. As an exampleof the connection is madeby a universal linkconsisting ot apair of bars I] connecteddirectly to the pile l5 by a pin. land to a member [9 bya pin 20.

load that should be' applied, it has been found that with a hammer 2 weighing 400 pounds, the

The member 59 is connected by means of a pin 2| to the body 9 and sleeve 6, the pin it extending through bosses 22 in the sleeve 6 and bosses 23 on the body I.

A pulling cable 2 i connected to the'body i by means of a pin 25 extending between bars 26 bridging the opposite end of the body I from the flanges 8 and welded to the opposite side of the x against the anvil 3. The inertia of the finger 2'! will cause it to leave the shoulder 3!. However, immediately the spiral spring 38 serves to rotate the-finger 231' back intoiiits starting position into engagement with the shoulder 31 and places the tail piece 36 in position to catch the next to the top step 38.

t-ln order to insure that the tail piece (iii will anvil '3 from the hammer 2. The pulling cable 2 is connected to a derrick, or the likefztnd main tained under tension thereby to draw the pile i catch thenext to the top step 38 and also to employ the sudden upward movement of the released ladder member 37 as an auxiliary driving from the ground. In order to assist the pulling action of the cable 2 i,the hammer 2 is'made to hammer against the anvil 3. I

The hammering action by the hammer 2 is obtained by cocking the hammer .2 against the spring l andtri pping it, by a finger 2'1 pivoted by means of a pin 28 between a pair of plates ,29 p-rojecting downwardly from the anvil 3. The finger 2? is urged aboutits pivotal axis by a spiralspring 3d shown-particularly in Fig. 3 into engagement with a shoulder 3! on the hammer f2 force against the hammer 2, there i provided a swinging arm 4% in the form of a pair of bars connected together at one end by a projecting dog M and pivoted by a pin i8 on either side of a projecting bracket 49 welded to the inner side to'the inside surface of the hammer 2 opposite the ladder-like member 36 is a bar 39 for thepurpose of providing a guide for the longitudinal movement, of the ladder-like member 31. The steps 33 are setslight-ly inwardly from theside ofthe ladder-lik member 37, adjacent the wall of the hammer-2 soas to provide a c'hannel ior receiving the bar 39, as shown particularly in Figs. 2 and a The ladder like member t nes connected to it a cable it which is connected to a suitable pulling member, such as ,an' au xiary' drum, .for' instance, on the"derricl:" em-, ployed to pull on the. cable 24.

Opposing. the action of the cable dill onithe' ladder members? is a spring ll, connected atone end atdfi to the ladder member iii/and at, the

other end to a pin d3 secured to a boss it turn secured by welding'to the interior surface of the sleye 6. "As shown particularly in Fig. 1, the lower end of the ladder memb'er 5:"! is provided with abridging bar 35 which in the absence of tensien' in 'thecable it bears against the boss i i 55 under the action of the spring 4H. I j a I In theposition shown. in Fig. 1 the hammer 2 is urged against the anvil 3 .by the spring l and there is sufficientten's'ion on: the cable ih to draw the ladder member 37 upwardly against the, ac.-

tionof thespring' t I, to bring the top step 38 into the contact with the tail piece 36 on theflnger 2i and to raise thebri'dgingbar d5 from the boss of the hammer 2 adjacent the lower end'th'ereo'f, as shown in Fig.1. A curved leaf spring to piv-' oted between the bars oi the arm 4% about a pin 5| and biased toward one wall of the hammer 2 by'a pin 52, resiliently urges the arm toward the ladder member 3 5 to} carry the dogll into the space betweentwosteps "The dog ii and the arm iii. are so positioned as to have a step 313 on the upwardly moving ladder member 3l contact with the dog ii, at the instant at which a step 353 slips past the tail piece '35 to trip the hammer '2. To accomplish thisresult, the dis-'1 tance that a step 36, in engagement with the. tail.

piece 35 moves upwardly, from the position shown in Fig. lat the startofthe upward movement of thetail piece 36, to the position at which that step 38 slips off the tail piece Hi2, plus the distance thathammer 2 is movedc'iownwardly under the action of the finger "i, shouldegual the distance betweenadjacentjsteps Due to the resiliency which is inherently in the cable 4'13 and the sudden, upward movement or the ladder member 3'? due to the release 01' thestep 38 from beneath the tail piece as, the ladder member .31 through the connection 'providedby a'step 38 and the dog s'l will assist the spring 5 indriving the hammer i2 upwardlyagainst theanvil 3.

Also, the fact that the dog fi'l ispositioned between the two steps 38 will insure that the ladder member 3'l.will not move upwardly a greater distance than required to permit the tail piece'ii'b to be disposed over the next lower step 38.

In order to move the dog M. from lateral en-Q gage'ment with the step With whichit is engaged immediately followingthe tripping of the hammer 2 there is welded between the plates 29, between which the finger 21 is pivoted, a cam 53 for engagingwith the dog 4? slightly before the hammer 2 reachesthe anvil Thus, the upward movement of "thedogdl will. cause "it to be cammed laterally by the cam 53 andout of engagem'e'nt with the step'33 with which it has been 44. Continued upward movement {of the ladder member 31 under the action of thefcable it results in rotating the finger 27. about thela ris r its pin 28 to force the hammer, 2 downwardly away from the anvil 3, as is'shown in Fig. 2. At the point of relative movement between the top I step 38 and the tail piece 36, as shown in Fig, 2,

when the countereclockwise rotational-, m0ve 1 ment of the tail piece SB'has movedv it laterally-to V the edge of the top's tepltii, the step step 38 slips from beneath the tail-piece 36; At that instant the spring l drives the hammer 2- upwardly engaged. In other words, the dog ll and its supporting lever lt 'togetherwith the steps Street;

as an escapement. j I

. The number of steps33inthe ladder member 3'! is optional, although there should be a' 'su'ificient number to providera reasonable number o'f' blows by the hammer 2 for each cyclefotoperation of the hammer me ersnit' will be ob served that the bridgi-ng n' ember "iii across lower end vof the ladder member 31 is directly beneath the lower end of the hammer 2 so that the member t5 serves as a stop tolimit the upward movement of the ladder member 3?; To

obtain thi result,jthe bridging member it should be sufficiently-spaced from the lowest: step 33' to engage the lower end of the-hammer 2' at sub,-

of the bar 6|.

m tin he ame tim hat e lowe t st p engages 10541.

invention is shown. The body I, hammer 2 and anvil 3 are the same as the form shown in Fig, ,1.

1 Also, the hammer 2 is provided with a loading vspring 4 and associated construction; not shown,

but like that as disclosed in Fig. 1. Likewise, the hammer 2 provided with a shoulder 3| at the base of a slot 32 extending downwardly from the upper end thereof, against which a finger are in position to pass; upwardly through the opening 11 in the anvil 3., v

It willybe understood that the bar 6| is pro vided with a stop, not shown, similar in operative effect to the stop 45 disclosed in Fig. l for limiting the upward and. downward movement of the barfil. When the bar 6| .has reachedits 58; bears. The finger 581s like the finger 2] of 1;and is supported from a pair of spaced p1ates59 welded to theunderside of theanvil 3, by meansof a pin 68, to. which it is keyed.

Likethe finger 21, the finger 58 is provided with a spiral spring, not shown, but like. the one shown in Fig. 3, for the purpose of continually urfging s it against the shoulder 31.; a

bar 6| and theother half of each being disposed in laterally extending slots 64 in the steps 62. The steps are arranged for. successive engage:-

ment upon lifting of thebar 6| with a tail piece 65 on the finger 58.

"Welded to the hammer 2 and associated with:

the bar 6| is a block 66 having cut therein a channel 61 for the purpose of receivingin succession the rear ends68of the steps 62. Pro-.

jecting downwardly from the anvil 3 is a cam69 having a tapered end 18 for engaging behind the steps 62 in the channel 61 to cam them outwardly thereof. To permit removal of the pin 68 when the hammer 2 hasibeeniremoved from the body I, so that thefinger 58 may beremoved, ahandhole H in the body I', shown in Fig. 11,. is provided. 1 y

The structure of Fig. 9 is connected for operationin a similar manner to the structure of Fig. 1. In the structure of Fig. 9, a cable 24 from a derrick is connectedjto the pin 25 at the upper end of the body I, and at the lower end thereofthere is a connection, not shown, to the piling as disclosed in Fig. 1. pin 15,.bridging a slot 16, cut inthe upper end A tension is placed on the cable The cable 48 is. connected to a,

upper limit andis being moved downwardlyunder the action of the spring 4|, not shown in Fig. 9, the steps 62 move downwardly through the opening 'l'l in the anvil 3. Should the vibra-' tion have moved any of the steps 62 to the right, as shown in Fig. 1 when they are above the anvil 3, there is provided a camming surface 18 in the anvil 3 for camming the steps 62 to the left.

I Also, to prevent jamming in the event of an ac-' cidental moving of the steps 62 to the right after they have passed beneath the anvil 3, the lower edge-l9 of the slot 61 is inclined to cam the steps 62 to the left. again.;,It is to :be understoodin positioning the lower surface 19 of the slot 61 that the position of the surface 19 determines; the limit of the cooking and the point of the tripping of the hammer 2. 1

Another form of theinvention. is disclosed in Figs. 13 and 14. In this form of the invention,

the stepped member is replaced by) a rack 88 driving a pinion 8i, pivoted on a pin 82 between two plates 83, depending from the anvil 3. Be-

tween the plates 83 and to each side of the pinion 8! are pivoted about pins 85 a pair of dogs 84. Each dog 84 is providedwith a seat portion 86 for loosely bearing against the pin 82, as shown in Fig. 13.

The hammer 2 is provided with a shoulder 81 against which the 'dogs 84 are adopted to bear in pairs. As the pinion 8| is rotated by the rack 80, two dogs 84 at a time move the hammer 2 downwardlywith respect to the anvil .3 until the dogs 84 slip ofi the shoulder 81, thereby releasing the hammer 2 and permitting it m be driven upwardly against the. anvil 3 by the spring 4,

notshown. It will be understood that the rack 80 is provided with a stop, not shown; similar to the stop 45 disclosed in Fig. 1 for limitingthev upward and downward movementthereof under the action of a cable 40 and spring 4|, respec tively. When therack 80 has reached the top of its movementand is moved downwardly under the. action of the spring 4|, the dogs pivot about their pins 85 to move the seat portions 86 thereof away from the pin 82 to permit the dogs 84 to move upwardly past the inside wall of the hammer] adjacent the seat 81, as the pinion BI 24 and the cable 46 is drawn upwardly to move.

the steps 62 successively past thetail piece 65. As the steps 62 move upwardly, .each one err-- gages withthe tail piece 65 .to rotate the finger 68 about the axis of the pin 66 to move the hammer 2 downwardly. At the instant a step 62 moving upwardly arrives opposite the slot 61,it movesto the right as shown in Fig. 9 to free the tall piece 65'. The movement of the step 62" to the right is the result of the caniming action' by l shown in the drawings. In the left-hand posi-. f i g h w eih tail P e e 55. thes s is rotatedunder the action of the .downwardly' moving rack 80. When upward movement of the rack is started again, gravity serves to position the dogs 84 so that theywill engage with the seat 81 on the hammer 2 to cock and trip th hammer 2 as described.

In order to remove the pinion 8| after the construction has been originally assembled by welding the anvil 3 .to the body I, in the'position shown, a hand hole 88, provided in the side of ,the body I for permitting access to the pin 83 so that it maybe removed when the hammer-.2

has beenremoved from the body I.

what would normally be the lower side of the body I. 1 Thecable 32 passes over: a pulley 93 on a derrich 94. Suitably securedto the outs-idcct the body las by Welding are apair of downwardly projecting bars 95, having Weldedbetween them a bridging plate-E51 The bars iifi are bifurcated at the bottom to provide a slot 91' in each for fitting over the top side of the piling 98, which inFigs. 1 5- and- 16, is shown as interlocking-sheet piling. The bridging plate cfi isin alignment" with the-inner ends ot the slots fil -an d rests on the top 0t the sheet piling 28 to distribute the intermittent driving force exertedthrough the bars 95.

The elongated longitudinally moving asea'reo succession, a cyclically operating longitudinally stepped member for actuating said second named means to-move bacl: and trip said hammer a plurality of times during a single cycle ofmovemerit ofsaid stepped member, tension means for operatively moving saidstepped member in one direction, and resilientmeans for returm'ng said stepped? member to its initial position. a

2. In a hammering device, a hammer, resilient meansi or' driving'said hammer, means for moving said hammer back against said resilient meansan-dtripping it a plurality of times in cooking and trippingv member which in the construction of Fig. l isthe ladder-like memberS'F, m: the construction of Fig. 9, isthe bar 51, and

the construction of Fig. 13', is the rack 83, is con-- nected to a bar 9 9, projected downwardly as shown in Figs. 15 and 1 6. At the lower ended the bar 99 is an eye M3, to which is connected a cable I01, which passes beneath a pulley 02 at the bottom of the support 90, and over a pulley I503: at the top of the support 9'8, through some pulling structure as anauxiliary drum on the derrick 94, such as employed to draw the cable of the structures disclosed in Figs. 1 through q 14.. It is preferred that the shaft supporting the pulley Hi3 be the same shaft 'of the derriclc 34 that supports the pulley 133. It will be obvious from an understanding ofthe structures disclosedin Figs. 1 through 14, that as the cable it] is drawn over the pulleys Hi2 and 3 to draw downward ly on the bar 99, the hammerin the body I: of Figs. 15 and 16 will transmit its hammering force through the body I and bars 95 to the piling 98:.

In order to prevent lateral deflection oi the above ground portion of the piling 98' as it is being driven downwardly, the bridging plate 95 has an extension I!!! in Which there is an opening 53 5 surrounding the supporting member '99. Thusas the piling 98 is driven downwardly, lateral-deflection will be prevented by the guiding provided by theopening me about the support ng member 98. During the driving of the piling 9B, itwill be understood that; the cable 92' should be slacked' off as the piling 9 8=is driven into the ground, asthe only function or the cable $32 is to raise the body I vertically with respect todt's support 95.1; In order tomaintain the support 913: against lifting when a tension is placed on the cable. Lxthe upper end or the support this connected to the shaft cf'the pulleys cc and 63 by ayU-cianrp 1295 or some sl'iitable equivalent, so: thattheupvvard thrust against the pulley I132, eicerterlibythe cable I ii i, is resisted by the derrick Due to theextreme degreefof vibration to which the apparatus, according to the present. invert-- tion, is subjected, it is important that all joints and connections Wherever possible be. in. order to: prevent accidental separation.

invention,.may'be adapted to pile driving Graham mering, it is to be; understood that it. is not considered" that this: iszthe' onlyfo'rm possible. Fur thermore', the invention isnot limited solely to use indriving or raising'piles, but may have other applications.

Having thus described my invention, WhatI;

desire to secure by Letters Patent and claimis:

While there is disclosed. one form of arrangement by which the apparatus, according to the present succession, and a cyclically operating elongated member having stepsfor actuating said second named meansto move back and trip-said hammer a plurality of times during a single cycl'e of movement at said steppedmember, and en escapement connected to said hammer for controlling the movement of said'stepsduring the movement of said stepped member.

mer, apivoted finger for cocking and tripping said hammer, acyclically longitudinally movable stepped member for actuating said finger to peri odically cock and trip said hammer a plurality of times during each cycle of movement to hammer said body, and an escapement connected to said hammcr for controlling the movement of said member duringthe movement or said stepped 1. In a hammering device, a hammer, resilient means for driving saidhammer; means for movingsaid hammer backagainst said resilient means and tripping it a plurality of times inmember to cock and trip saiclhammer.

5. Iiia hammering device, a hammer, an. anvil for connection to the object to be hammered; hammer actuating means, longitudinallymovable stepped means for periodically cocking and trip ping said hammer through said hammer actuat ixrg means, whereby said hammer is moved away from said anvil and driven by said hammer actuating means against said anvil, tension means for operatively moving said stepped means inone direction, and resilient means for returning said stepped means for its initial position.

6. In ahammering. device, ahammer, an anvil for connection to. the object to be hammered, a spring. for driving said hammer, a bracket fixed 1 with respect to said anvil, a finger pivoted to.

said bracket, an operative connection between saidfinger andi-said' hammer, stepped means for actuating said finger to periodically cool; and trip; said; hammer to hammer saidi anvil, tension.

means for operatively moving said stepped means in one direction, and resilient means for return,- ing saidstepped meansto its initial position.

v 7. A device of the cl iaracter described com-v prising a tubular body, a tubular hammer slid.- ably disposed Within. said. body, an anvil. in said body adapted to be hammered by said hammer, a

shoulder within said body, a spring between saidhammer' and said shoulder forurging sai'd hammer' toward'said anvil, a; bracket connected to said anvil projecting into said" tubular hammer., and means for cooking and tripping sai'd' hammer whereby, said hammer is moved away from said anvil against the action of said spring, and

releasedto' permit said spring, to drive said ham- -mer against said anvil, said cocking'and' tripping finger for periodically cocking said hammer for cocking and trippingsaid ha g b 2,3'2s,"12o means including a finger pivoted to a DEI'tPOf .sflid bracketwithin said'hammer. l A 8-. 'A devicepf the character described comprisingatubular body, a tubular hammerslidably disposed within said body-pan anvil in said body adapted to be hammered ashoulder in said body, a spring between oneend of s'aid hammer and 'said shoulder for urging said hammer toward said anvil, a bracke'twithin and 'flx d with respect to; said bOdy, Said bracket extending into said hammer, a finger pivoted to said bracket on a part thereof within" said hammer," said fingerkhaving an operative connectionwith said hammerg-andmeansffor actuating said hammer to hammer said anvil.

, 9: A device of the character described com a tubular hammer slidably disposed withinsaid body, an anvil in said prising a tubular body,

body adapted to be hammered by said hammer, ajshoulder'in said body, a spring between one end of said hammer'and said shoulder for urging said hammer toward, said anvil, a bracket within and dried with respect to said body, a finger pivoted to said bracket, a shoulder onsaid hammer,

by said hammer,

and tripping said tween isaid anvil and pulling-means operating in the same direction as 15 said'first named means to actuate said-stepped means for urging one end of said finger against disposed within saidbody, an anvil in sa id body adapted to be hammered by said hammer, a;

shoulder in said body, a springbetween one 'end of said hammer and said shoulderfor urging said hammer toward said anvil, a bracket within and fixed with respect to said body, a fingerpivoted tofsaid bracket, a shoulder on said hammer, means for urging one end of said fingeragainst 'saidlast named shoulder, a longitudinally movable stepped member operatively associated with said finger/guiding means on said hammer for said stepped member, and means to longitudinally move said stepped member to] actuate said finger to periodically cock and trip said ha -H mer to hammer said anvil. i o

1 1.A device of the character describedcom prising a tubular body, a tubularhammer within said body, an anvil in said body, adapted to, be hammered by said. hammer, a fingerpivoted with respect to said body, an operative connection be tween said finger and said hammer, stepped 6 1 eanstoexert a forceflon said stepped means to move the same to cause the said stepped means to actuate said finger to periodically cock andtrip said hammer tohammer said anvil a member pivoted to said hammer, and a tooth connected to said member, said Inent oif'said stepped means as said hammerf is cooked, whereby upon a tripping of, said hammer the .force exerted on said stepped means to move the same is transmitted to said hammer throu one .of the steps .12. In a hammering deviceya hammer, an I vil torconnection to the object to be hammer a spring 'fordriving said hammer, stepped ing means having an operative connection w member being mo'vjableto project said tooth intojthe path'of moveof said stepped means ands i member. i

ling the movement means, whereby the pulling force exerted by said mer, whereby said hammer is moved away, fr

. bs l anvil against the. action of said sprin hammeragainst said anvil. V

l'lJA hammering device comprising a tubular" .body, a tubular hammer slidably disposed within? an anvil in said body adapted torbe by saidfhammer, resilient means tor;

said body,

saidhamrner, one end of mentofsaid stepped moving means.

113. In combination with means to exert a continuous pull on a bodygan anvil connected to said body, a hammer, a spring for driving said hammeragainst said anvil, cyclicallyoperable stepped moving means having a plurality oftimes per to assist said pulling cycle in rapid succession saidymoving means, and

moving means.

14. In combination with means to exert a conan anvil-connected to said body, a connection between saidmeansand said anvil, a hammer, a springforurgingsaid ham-' mer toward said, anvil, stepped moving means connection with said hamsaid hammer a plurality of tinuous pull on a body,

havinig "an operative me: to cock and trip times in rapid succession to assistsaid pulling means, elastic pulling means operatiing A in the samedirection as saidfirst namedmeans toactuatesaid stepped moving means, and an escapement connected to said hammer for controlof said cooking and tripping elastic pulling means is periodically transferred to saidhammer through said escapement.

15. In a hammering device,

vil for connection to the body to be hammered, a

spring for driving saidhammer, and a longitudinallymovable elongated member. having a plu rality of laterally movable steps having an operative connection withsaid hammer for cooking and trippin said hammer,

against the acti on of said spring and released to permit said spring to drive said hammer againstsaidanvil.

16. In a hammering device, a hammer, an anvil for connection to the body to be hammered, a spring for driving said hammer,a finger pivoted with respect to said said hammer a, plurality of times in' succession, whereby said hammer is moved successively away from saidanvil against the action of said spring and released to permit said hammered driving said hammer against s'aidanvil, a finger within said'-body and hammer pivoted'between itsends with respect to said against said shoulder, and

tudinally movable member having a plurality of rative relation'to the-other end of said-finger I erto hammer saidanvil, 7 18. In a hammering device, a hammer, an an- 5 7 released to permit said spring to drive saidharnmer against said anvil, and an ,escapementcon.- nected to said hammer forjscontrolling the move an operative connection with said hammer'tocock and trip said hammer means, a connecticn bea hammer, an an- V whereby said hamf meris moved successively away from said anvil anvil, and a longitudinally movable elongated member having aplurality of laterally movable steps for acting on said finger in succession to cause the same to cook and trip spring to drive said body, a shoulder on said finger bearing adelondated longie aterally'movable steps movable with'respect to, said steps being movable laterally into:

r 'successively'acting on the same during lone H tudinalmovement of said member to causelsaid i ger to cock said hammer, and being movable, ccessively laterally in the oppositeldirecticn tolease saidend of said finger to trip said hamspring for driving. said hammer, a.

finger 'rality' of times in succession,

. to; permit said said hammer, a cocking finger for saidhammer,

trip said hammer a plurality of timesfor eacli vii for connection tothebody to; be hammered, a.

withrespect to: said anvil, a, memberhaving, a: laterally movable step for moving said" finger to cock; said hammer, means; to move said member longitudinally to move; said; step .to'move;

race on said fingerto cam said step laterally out oroperative relation therewithto trip-said ham-1 men J ,19. In a hammering-devica'a hammer, an

anvilfor connection to; the body. tobe hammered, a. spring. for driving said. haimner,v a. pinion pivoted'. with respect to said anvil,v arack: I'SCiQI'OCfir blv movable-with respect to said anvil, in opera.-v

tiverelation with said pinion, and meansmovable by said pinion, upon a single? reciprocation of said rack, to cock and trip said hammer a pluwhereby said ham: mer is moved successively away from said anvil against the action of said spring and released spring to drive said hammer against said anvil. 1 l

a 20. In a pile raising, mechanism, a hammer unit, suspension means for the hammerunit, means for connecting a pile tosaid unit, a. reciprocable loadable hammer in said unit, means for transferring blows from said. hammer to said unit,a cyclically operable reciprocable member, and meansfor providing and releasing a plurality. of loading connections between said hammer and said member for imparting a; plurality of strokes-- to said hammer during each cycle of operation ofsaid reciprocable member, tension means for operatively moving said memberin do one, direction, and resilient means for returning; said member to its initial position.

'2'1. A pile driver orthe like comprising an anvil, a cable for supporting said pile driver, a

longitudinal guide therefor, a hammer, a spring urging saidhammer toward said anvil, means. tocock and trip said hammer a plurality of times in succession, and a cable for-actuating said means, said second'cable acting in the direction of hammering of said hammer.

22. A pile raising mechanism comprising a a connection on" said casing for. a cable 'forsupportingsmd casing and for exerting a.

steady upward pull therein, ananvil in said casspring for urging said hammer against said anvil,

an upwardly movable member, a connection between said member and said hammer for urging. said hammer downwardly to compress said spring:

when said member is moved upwardly, a connection between said hammer and said member for unitary movement of said hammer and member following a downward movement of said hammer,

and a connection upon said member for a cable. 23. A pile raising mechanism comprising acable supported hammer unit, .a second cable actuated loading and firing structure for said hammermovable relatively to said hammer unit during the loading of the hammer, and means for connecting said structure and hammer unitv together for unitary movement when said. ham mer unit is fired.

24;. A device of thechar'acter described com prising ahammer, resilient means for'driving' cyclically operable stepped means movable past said finger to actuate said finger to cook and finger pivoted;

said. in cooking. direction, anda cammingsur.-

mg, a reciprocable hammer in said casing, a.

escapement operatively associated with saidthe operation of said stepped means to control steppedmeans, and tension means acting in the direction of hammering to move said stepped means, and'being arrangedwith respect to said hammer to employ the resistance to cooking to supplement the action of the hammer.

26. A device of the character described comprising a hammer, an anvil for connection to the object to be hammered, resilient'means for driving said hammer, cyclically operable meansv to move said hammer against the actionof said resilient means. to compress the same, and tov suddenly release said hammer to drive the same againstsaid anvil a plurality of times during each cycle of operation of said means, and an operative connection between said hammer moving means and said anvil to direct the resistance to compressing said resilient means against said anvil in hammering direction to supplement the action of said hammer.

27. A device of the character described comprising a hammen-an anvil for connection to the object to be hammered, resilient means for driving said hammer, a cooking finger for said hammer, stepped means movable past said finger to actuate said finger to cook andtrip said hammer, an escapement supported by said hammerv to control the operation of said stepped means, means on said anvil for moving said escapement to render th'esame inoperative temporarily to permit movement of said stepped means, and. means to operatively move said stepped means.

28. A device of the character described comprising a hammer, resilient means for. driving said hammer, a cooking finger for said hammer,

longitudinally movable means to actuate said finger to cook and trip saidhammer, and tension means acting in the direction of hammering to move said'longitudinally movable means to employ the resistance to cocking to supplement the.

action of the hammer.

{'29. A device of the character described for handling a body comprising 'a'spring driven hammer,.mechanism including a longitudinally move. able stepped member for periodically cooking and. tripping said hammer for hammering. the

body, and an escapement associated with said stepped member for controlling the movement of said stepped member during the movementv of said stepped member which periodically cocks and trips said hammer. I 30. A device of the characterjdescribed comprising a hammer, resilient means for driving.

lically operable stepped means movable past d finger to actuate said finger'to cock and stepped means.

idhamme'r, a cooking finger for said hammer;

\ 4 said hammer a plurality of times for each le of operationthereof, and means to move LEON w. ATWATER' 

